Lung window observation of head and neck CTA images for detecting lung lesions / 中国介入影像与治疗学

ABSTRACT

Objective To explore the significance of lung window observation of head and neck CTA imaging for detecting lung lesions.Methods Head and neck CTA images of 1 000 patients were retrospectively analyzed.The patients were divided into the elderly group (≥ 60 years) and the young group (＜ 60 years),also smoking group and non-smoking group.The displaying of lung lesions on mediastinum window and lung window images were compared between the groups,respectively.Results Pulmonary lesions were found in 308 of 1 000 patients.The lesions were only visible on the lung window images in 283 patients,only visible in the mediastinum window images in 8 patients,visible in both lung and mediastinum window imaged in 17 patients.Lung cancers were detected in 8 patients,and ground glass lump in 1 patient was only visible in lung window images.The lesions only visible on lung window images in the elderly group (191/494,38.67％) was significantly higher than that in the young group (92/506,18.18％;x2=51.680,P＜0.001),and insmoking group (143/348,41.09 ％) was significantly higher than that in non-smoking group (140/652,21.47％;x2 =43.043,P＜0.001).Conclusion Lung window observation of head and neck CTA images can increase displaying rate of lung lesions,especially in elders (over 60 years) and long-term smokers.